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问答题

One of the mysteries of nature is animal communication. Creatures of the sea move through their liquid element without any audible sound. Yet they are able to sense the silent passing or attack of others of their kind. This is because bodies moving in water create a pressure wave, something like the puff of wind produced by a passing automobile. A narrow sensor system running along each side of the shark, from eye to tail, receives and interprets these pressure waves.
One might think it impossible to distinguish odors in water. Yet sharks, surprisingly, are able to follow a scent across miles of ocean and arrive at its exact source. A diver who spears a fish and attaches its bloody body to his belt, and then goes on with the hunt, becomes a natural prey to the shark. They can follow a scent exactly like dogs of a hunting pack. It is no wonder that the Greeks gave them the name of "hounds of the sea. \

【参考答案】

动物之间的交流是大自然的一个谜团。海洋生物在水中安静地游动,并不发出可听见的声波,却仍能感知其同类在身旁默默地经过或向它们进攻。这是因为物体在水中的运动形成了水波压力,和汽车经过时所形成的一阵风相似。在鲨鱼身体两侧由眼部到尾部有一条狭长的传感系统,它能接收并转译这些水波压力信号。
可能有人......

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